1. National Engineering Laboratory for Big Data System Computing Technology, Shenzhen University, Shenzhen, China
2. Department of Automation, Xiamen University, Xiamen, China
3. Department of Computer and Information Sciences, Northumbria University, Newcastle upon Tyne, U.K.
4. Department of Computer Sciences, Minnan Normal University, Zhangzhou, China
5. Newcastle Business School, Northumbria University, Newcastle upon Tyne, U.K.